Lock



, Jam 15, 1929..,

E. R. MENZEL LOCK Filed Nov. 15, 1925 2 Sheets-Sheet 1 /yZO Wl in gh'fr..

l l v 6 www@ ff fd M2 El @Hoz ms E. R. MENZEL Jan. 1 5, 1929.

LOCK

2 Sheets-Sheet 2 Filed Nov. 13, 1925 Patented Jan. 15, 1929.

UNITED ST'EES .PATENT QFFCE.

EDMUND R. MENZEL, OF STAMFORD, CONNECTICUT, SSIGNOR 'IO THE YALE'ANDTOWNE MANUFACTURING COMPANY, OF STANFORD, CDNNECTCUT.

Loox.

Application filed November 13, 1925. Serial No. 68,796.

This invention relates to an improvement in locks and more particularlyto those of the rim type, in Which the bolt is deadlocked at the ends otits throwffone object of the invention beiim,- toprovideA` simpleandetlicient means tor operating and deadlocking the long-throw bolt ofa rim'lock.

lVith this and other objects in view7 the invention consists in certainnovel features of construction and conibinations ot parts as hereinafterset forth and pointed out in the claims.

In the accompanying drawings,-

Figure 1 a tace view ot' a rim lock with thc back plate removed,showing` an embodiment o'l my invention.

Figure 2 is a similar View showing the bolt at the opposite end of itsthrow to that shown in Figure 1.

Figure 8 is a sectional view, on line 8-8 of Figure 1. l

Figure l is a view of the back plate and the rollback carried thereby.

Figure 5 is a view of the locking tumbler.

Figure 6 is a View showing the rollback lever Which cooperates With thelocking'tumbler. i

Figure 7 is a vievv in elevation of a rim lock provided With inside keyoperated means.

Figure 8 is a sectional vievv on the line8-8- of Figure 7, and,

Figure 9 is a view showing` the bolt, tumbler and rollback leveremployed in the construction shown in Figure 8.

A rim lock casing is shown at 1 and a keeper at 2 for a bolt 8 which ismounted to move longtiudinally through the casing and enter the keeper.r1`his bolt is provided with an elongated slot l through which the shankportion 5 ol a knob 6 passes. A plate or bracket 7 is secured within thecasing 1 at one side of the bolt 3 and is provided with an arm bprojecting partially across the bolt. This arm is made 'with a holewhich receives a small pin 9 project-ing from the knob stem.

Pivotally'mounted upon the bolt 3 near one end of the slot 4; therein,is a locking tumbler 10 having a recess 11 for the accommodation ot thebracket arm 8 When the bolt 3 is at one end of its throw. The lockingtumbler is also provided near its free end With a closed slot 12 and anopen slot 13. The locking tumbler 10 Will preferably be made o tvvoplates 14 and 15 rigidly secured together as indicated at 16,-the openslot 13 being formed in the plate 111 and the closed slot 12 beingtermed in the plate 15. Mounted torotatc with the stem'of the knob is arollback arm or lever 17 and this lever is provided with a pin 18 whichenters the closed slot 12 of the locking tumbler. A spring 19 operatesnormally to press the locking tumbler in a direction toward the bracketarm 8 and when the parts are in the position shown in Figure 2 therecess 11 of the tumbler receives the bracket arm8 land the pivotalmounting of the tumbler on the bolt is on a dead center with the axis otthe knob spindle, so that the bolt 8 Will be held deadlocked. lNhen theknob is turned in one direction, due to the cooperation of the pin 18 onthe rollback lever 17 with the slotted portion 12 of the tumbler, thetumbler Will be turned on its pivotal mounting and made to ride past thebracket arm 8 at the same time causing movement of the bolt 3 in onedirection) and become disposed at one side of said bracket arm as shownin Figure 1, the locking tumbler beingv provided with an end portion 2Oto engage said bracket arm whereby the bolt 3 will be deadlocked, Itwill be observed that in each position of the bolt v8, the pivot ot thetumbler, the axis of the knob stem or spindle and the pin 18 on therollback lever 17 will be in alignment.

The cover or back plate 1a of the casing carries a rollback cam 21 to beoperated by means of an outside key controlled lock (such as a cylinderlock for example) and a pin 22 on the rollback Cam 21 enters the openslotl 19 of the tumbler. 1t Will be readily 'understood that When therollback cam is operated by means of the key controlled lock, the bolt 3will be moved from one end to the other of its throw and i'rom onedeadlocked position to another in the manner substantially ashercinbefore explained.

Instead of providing a knob as un inside operating means, as shown inFigure 8, inside key controlled means may be employed as in theconstruction shown in Figures 7, 8 and 9. The open slot 13 in thetumbler 10 permits the pin 22 of the rollback cam 21 to move entirelyout of engagement With the tumbler and to a position which will allowthe key of the cylinder lock to be withdrawn. As tivo key controlleddevices are employed in the construction shovvn in Figures 7-9, thelocking tumbler 10a is so slotted as to permit both rollback pins tomove entirely out of engagement with said tumbler 10a. The tumbler l()amay be Cenetrueted of two mehjibers lle same as the tumbler 1G and eachof these meer bers be provided with an operi slot l instead of onemember being provided Wih :fin open slot and the oher with a Closed SlobIn the construction shown in Figures 7 and 8, the easing l may be formedwith en largement 23 to receive e.. cylinder lock 2l and the plug 25 of'this lool; is euirebly corr neared with the rollback lever l? foropereting the same. Y

Hering' iilly deeeribed my invention Wight I claim :Le and desire *eosecure by llietereu Patent, is:

l. In e, look, the combination with a casing and a'sliding bolt having'a. longitudinal slot, or' ai fixed member Within the easing et Jhe Sideof the bolt, :L tumbler pivoced io the bolt and 'edaped to engage theixel member in either of two positions of the bolt7 Suid tumbler havingy:i closed Slee, e manually operable slot of Jehe fumbler.

Leggero ineens including e shank passing; liroiigh he ,fslotin thebo 4;,e rollback member operative- Y ly Qomieeted with said shank, and e pincer ried by seid rollbek member and entering' the closed S102@ Q thetumbler.

2. In :i lock, the combination with e casing and a sliding'bolt, of afixed member Within the Casing, e. Spring pressed tumbler pivoted thebolt mld adepfed to engage said fixed iiiember in either of twopositions of the bol, seid uriiblerhsiviig :L closed slot and alsohaving an open slot, e. knob spindle, a rellbaek arm Carried there y andprovided Willi a pin entering the closed sloto the tumbler, a keyControlled lee/l? e rollback @operable with the movable'ineiiiberAthereof, and a pin eerried by Said rollback end entering the open le.testimony whereof?, have Signed this epeciicetion.

' EDMUND MEHVFT

